Self-operating mine-door for locomotives



P. J. STANTON. SELF OPERATING MINE DOOR FOR LOCONIOTIVES. APPLICATION FILED AUG-18. |920.

TORNE Y.

uNlTi-:nv STATES PATENT l orticaf PATRICKJ. STANTON, or LUNDALE, wrisT vIinirrILa.l`

snnrsornnATmG Mms-noon non LocoiyroTIvns. A

To all 'whom it may concern Be it known that I, PATRICK J. Sl'raN'roN, a citizen of the. United States, residing at Lundale, in the countyptLogan and StateV whereby -thefdoors may be automatically opened by a car ortrain passing through the door thereby obviating the necessity or" employment of manual labor to open and close the doors. Y I

Another object ot this invention resides in the provision of doors mounted to swing in either direction and equipped with tension means adapted to permit said doors to be freely opened by a train or car and which will automatically close the doors after the passingof a train or car.

A further object of the invention is the provision of guards applied to-each side of the doors and adapted to be engaged by the train or car and which will protect'and prevent the doors from being injured by being struck by the train or car.

A still further object'of this inventionis l i provision of a mine door of the above seci Character, which Wiii be provided with canvas loose connections between the rear or hinged edges thereor" and the post to which the door is hinged, the door being o1" simple and eiiicient construction and of such 40 mounting that the door may be readily placed or removed, as desired.

With the foregoing and other objects in view as will be apparent as the description proceeds, the invention consists in the novel construction, confibiiiationV and arrangement of yelements as more specifically set forth, claimed and shown in 'the accompanying drawings forming a part of the present application and in which: n

Figure 1 is a 'ront elevation, illustrating a mine door constructed in accordance with my invention. Y

Fig. 2 is a longitudinal 'section on the plane of line 2-2 of Fig` 1, looking in the direction indicated by the arrows, and showing a car at the door.

Specication of Letters Patent.

,eitherdire'ction y A'ieaa'entefl Apr.. 12,192`1Q Y Appieanon inea Agst is, i920. ser-'iai N0.4o4,441. i

t Fig. 3 isa detail enlarged transverse sec- 1' tion throughone ofi-the car doors yalong the vReierring more inidetailtothedrawings in which similarreferencecliaracters designate kcorresponding parts throughout the several views, 1 indicatesa mine doorway having located therein sideposts 2te which are hinged doors 3 adapted to close thedoor- 65, way 1 and overlie the trackft. rlhe connec tions between ythe d oorsand posts, are by means ofstrap hinges 5 secured to oneoi: the sides of the doors and having eyelets in their endsto receive hooks 5 secured to the posts 7.0` 2 lwhereby said doors arelfree to swing in- 1 lCoiled springs 7 are secured tothe posts 2 and to one side of the doors '3 for the pur-V pose of normallymaintaining the' doors in 7.5 closed position, but which .will permit the doorstobe swung in either direction when j'- f engaged by a train or car bumper 11 carried on a car 12, the bumper. 11 being arranged so as to engage' guards 8 mounted on the 80 sides of ltlietd'oors. The springs7 Vhave'f their opposite ends mounted in'the eyes if formedlin the yends of .adjusting screws or screw eyes 7 which are extendedthrough one angle of anl angular supporting bracket 7 "Emounted on the bolt 2 andthedoor 3 at suitable points, as shown vin the drawings. Nuts 7 are threaded upon the screw eyes 7 and contact with onet'acev of the angular supporting bracket 7 to retain the screws 90 in adjusted position and thereby regulate thev tension of the springs 7. l Y

- rEhe guards 8 are of substantially arcuate shape and have their opposite ends turned inwardly, as shown at 9 and secured to the 95 face of the door 3, by suitabley bolts 10 passed i therethrough. The arcuate guards 8 are arranged in pairs upon opposite sides of the dooras shown in Figs. 2 and 3.

Fach door 3 has its end edge spaced from i 100 l and connected with the adj aceiit post 2 by a canvas or other flexible curtain member 13 extended in opposite directions and secured to the opposite edges of Vthe post 2. This' construction will also be readily apparent by `referring to Fig. 2'of the drawings. 1

It will be understood that a suitable cabl 1st is extended throughV the doorway above one of the doors 3, a cable groove 15 being 1 provided toaccommodate the cable 14, as v clearly vshown in Fig. 1 of the drawings.

F rom` the foregoing paragraphs taken in Vconnection with the accompanying drawings, it will be seen that the bumper l1 carried by the car 12 will engage the arcuatel guards 8 carriedby the vopposed doors and orce the same to swing upon the hinges ahead of the car as the latter passes through l 'the doorway, Ythe springs 7 serving to automatically return the doors 8 to closed position. n

While the preferred embodimentpf the invention has been shown and descrlbed, it

will be understood that minor changes in the -said'posts, means to resiliently retain said doors in closed position, and guard members mounted on opposite sides of said doors for engagement by a locomotive to force said doors to swing tov open position.

2. A mine door comprising posts arranged inthe doorway of a mine, doors hinged to said posts and capable'of swinging in either direction, tension means connected to said doors for normally holding and returning saidrdoors to a closed position, said doors being adapted to be engaged vby a train or car to open them, and a flexible member con necting the hinged edges of Said doors and posts.

3. A mine door comprising posts arranged in the sides of a doorway, doors hinged to 'said posts and capable of swinging in either direction, coil springs attached to the posts anddoors and upon each side of the doors said doors to a closed position, arcuate shaped guards secured to each side face of said doors and vadapted to be engaged by a train or car to open the doors, means for regulating the tensionof said-springs, and iiexible connections between the hinged edges of said doors and said posts.

4. A mine door comprising posts arranged in the sides of a doorway, doors hinged to said posts and adapted to lswing in opposite directions thereon, guard members arranged in pairs upon opposite sides of said doors, said guards having inturned ends with bolts secured therethrough' and through said doors, said guards being of arcuate form land adapted to be engaged by a bumper carriedV by a car approaching said doors,said

for normally maintaining andv returning doors being adapted to be swung to open i PATRICK J. STANTON.

Witnesses EARL Coox,

W. A. BIRD. 

